Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks
In the face of the high power consumption issue caused by the dense deployment of base stations in cell-free networks, a wideband cell-free network system with sub-connected active reconfigurable intelligent surface (RIS) was proposed.Firstly, based on the constraints of maximum power consumption at...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2024-02-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024031/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841540061435265024 |
|---|---|
| author | Gangcan SUN Shuo WANG Bing NING Wanming HAO |
| author_facet | Gangcan SUN Shuo WANG Bing NING Wanming HAO |
| author_sort | Gangcan SUN |
| collection | DOAJ |
| description | In the face of the high power consumption issue caused by the dense deployment of base stations in cell-free networks, a wideband cell-free network system with sub-connected active reconfigurable intelligent surface (RIS) was proposed.Firstly, based on the constraints of maximum power consumption at the active RIS, amplification factor, and maximum power consumption at the base station, a joint precoding design problem for the base station and RIS was formulated to maximize the energy efficiency.To solve the non-convex problem, advanced techniques including alternating optimization, block coordinate descent, Lagrange dual reconstruction, and multidimensional complex quadratic transformation were applied to transform the original problem into multiple sub-problems.By iteratively solving each sub-problem, the solutions of the original problem was ultimately obtained.The simulation results validate the effectiveness of the proposed scheme. |
| format | Article |
| id | doaj-art-a0dc52fe2ba942b79d6c1f24d32332d5 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2024-02-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a0dc52fe2ba942b79d6c1f24d32332d52025-01-14T06:22:06ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-02-014512713659383369Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networksGangcan SUNShuo WANGBing NINGWanming HAOIn the face of the high power consumption issue caused by the dense deployment of base stations in cell-free networks, a wideband cell-free network system with sub-connected active reconfigurable intelligent surface (RIS) was proposed.Firstly, based on the constraints of maximum power consumption at the active RIS, amplification factor, and maximum power consumption at the base station, a joint precoding design problem for the base station and RIS was formulated to maximize the energy efficiency.To solve the non-convex problem, advanced techniques including alternating optimization, block coordinate descent, Lagrange dual reconstruction, and multidimensional complex quadratic transformation were applied to transform the original problem into multiple sub-problems.By iteratively solving each sub-problem, the solutions of the original problem was ultimately obtained.The simulation results validate the effectiveness of the proposed scheme.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024031/active reconfigurable intelligent surfacesub-connected architecturecell-free networkwidebandenergy ef-ficiency |
| spellingShingle | Gangcan SUN Shuo WANG Bing NING Wanming HAO Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks Tongxin xuebao active reconfigurable intelligent surface sub-connected architecture cell-free network wideband energy ef-ficiency |
| title | Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks |
| title_full | Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks |
| title_fullStr | Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks |
| title_full_unstemmed | Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks |
| title_short | Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks |
| title_sort | energy efficiency optimization for sub connected active reconfigurable intelligent surface assisted wideband cell free networks |
| topic | active reconfigurable intelligent surface sub-connected architecture cell-free network wideband energy ef-ficiency |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024031/ |
| work_keys_str_mv | AT gangcansun energyefficiencyoptimizationforsubconnectedactivereconfigurableintelligentsurfaceassistedwidebandcellfreenetworks AT shuowang energyefficiencyoptimizationforsubconnectedactivereconfigurableintelligentsurfaceassistedwidebandcellfreenetworks AT bingning energyefficiencyoptimizationforsubconnectedactivereconfigurableintelligentsurfaceassistedwidebandcellfreenetworks AT wanminghao energyefficiencyoptimizationforsubconnectedactivereconfigurableintelligentsurfaceassistedwidebandcellfreenetworks |